Total Population in St. Charles County, MO
ACS 2024 5-Year Estimates
How St. Charles County Compares
National Distribution
Where St. Charles County falls among all 3,222 U.S. counties for total population.
■ St. Charles County: 414,535
Ranking Context
| Rank | County | Value |
|---|---|---|
| #175 | Richland County, SC | 422,117 |
| #176 | Charleston County, SC | 420,264 |
| #177 | Placer County, CA | 419,156 |
| #178 | St. Charles County, MO | 414,535 |
| #179 | Lake County, FL | 412,924 |
| #180 | Mobile County, AL | 412,590 |
| #181 | Waukesha County, WI | 411,762 |
Total Population in St. Charles County, Missouri
St. Charles County, Missouri has a total population of 414,535, which ranks #178 of 3,222 out of 3,222 counties nationwide. This is 99.9% below the national value of 330M.
Within Missouri, St. Charles County ranks #3 of 115 out of 115 counties. This places it in the 95th percentile nationally.
Total population count from the American Community Survey. All data comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates for 2024.
About this data
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2024). All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.